When a countable noun is the subject, the singular and plural of the predicate verb are the same as the singular and plural of the subject help

When a countable noun is the subject, the singular and plural of the predicate verb are the same as the singular and plural of the subject help

It depends on the person of the subject. The first person singular and all person plural use the verb prototype. The third person singular verb is followed by s or ES (simple three form)